Ilharg Semi-Voltron

https://deckstats.net/decks/50991/1315121-ilharg-semi-voltron-

This is the best I can do with this Commander as is, so I am thinking a Semi-Voltron build where the etb creatures are more a secondary win-con.

I want therefore to keep the creatures either powerful or easy to cast.

I know very few here have worthwhile etb effects, and I know that on attack triggers don't trigger when they are cheated in, but I don't think that's an issue when its still a big bad creature.

I try to get use out of [[Cloudstone Curio]] as a way to recast some important things or save some hard casted guys, as well as getting around the exert ability of [[Combat Celebrant]] for an example by bouncing it back.

Any suggestions on how to strengthen this deck and the strategy I have made here?